Each lobby card measures 11" x 14' and is marked with "Copyright 1943 RKO Radio Pictures Inc." The set sold at auction on November 14, 2009 for $597.50 (USD).
The next two cards are almost identical except some of the dwarfs are "flopped" and the colors are slightly altered...
The deleted "bed building" scene didn't make it into the final film, but here it is on a lobby card...
Images via Heritage Auctions.
The set was listed on page 15 of the 1944 Snow White pressbook.
Pressbook scan courtesy of the Michael Filippello Collection.